Image Display Device Operation Mode Switching for Lifespan Extension
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Solution Overview
Problem
Image display devices, such as projectors, lack automatic adjustment mechanisms for long-term equipment maintenance, leading to potential deterioration and reduced lifespan due to lack of consideration for equipment lifetime.
Innovation Solution
An image display device with a use aspect information acquisition unit, early period mode setting unit, later period mode setting unit, and timing determination unit that switches operation modes based on cumulative operation hours and sensor data to extend equipment lifetime by adjusting parameters like luminescence drive current and cooling operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If parameters are adjusted on a short-time basis according to user operation or sensor detection, then image quality and luminance can be optimized for immediate use, but there is no automatic adjustment mechanism for long-term equipment maintenance and lifespan extension
Solution Approach 1:
The control unit stores multiple parameter sets corresponding to different usage periods (early period, middle period, late period) and automatically switches between them based on cumulative operation hours. This preliminary preparation of parameter sets allows the system to proactively adjust to long-term equipment maintenance needs without requiring real-time user intervention or complex sensing mechanisms.
2Reliability
If the device operates continuously with fixed parameters optimized for initial performance, then image quality is maintained at highest levels, but equipment deterioration accelerates and lifespan is reduced
Solution Approach 1:
The system dynamically adjusts operational parameters based on the usage period. The control unit automatically selects from pre-stored parameter sets corresponding to early, middle, and late usage periods. This dynamic adaptation allows the device to transition from performance-optimized parameters in the early period to maintenance-optimized parameters in later periods, extending equipment lifespan without requiring complex real-time adjustments or user intervention.
3Reliability
If mode switching is implemented to extend equipment lifespan, then long-term reliability improves, but device complexity increases due to multiple parameter sets and timing determination
Solution Approach 1:
The usage period is segmented into distinct phases (early period, middle period, late period), with specific parameter sets prepared for each phase. The control unit switches between these segmented parameter sets based on cumulative operation hours. This segmentation approach simplifies the overall system by breaking down the complex task of continuous parameter optimization into manageable discrete phases, each with predetermined optimal parameters.
Data Source
AI summary
An image display device includes a use aspect information acquisition unit that acquires use aspect information regarding an equipment use aspect, an early period mode setting unit that sets a parameter related to processing or operation executed at a time of image display on the basis of the acquired use aspect information and causes image display operation to be executed as an early period mode, a later period mode setting unit that, in response to determination that it is the mode change timing, resets a parameter related to processing or operation executed at a time of image display and causes image display operation to be executed as a later period mode, and a timing determination unit that determines the mode change timing.